Home / 129,948.58-179,327.55-76,223.26

Finding the Fourth Proportional to 129,948.58, 179,327.55 and 76,223.26

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Solution

The fourth proportional to 129,948.58, 179,327.55 and 76,223.26 is: 105,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,948.58 : 179,327.55 = 76,223.26 : x
  2. Step 2: Convert to fraction form
    129,948.58/179,327.55 = 76,223.26/x
  3. Step 3: Cross multiply
    129,948.58x = 179,327.55 × 76,223.26
  4. Step 4: Simplify right side
    129,948.58x = 13,668,930,468.81
  5. Step 5: Solve for x
    x = 13,668,930,468.81/129,948.58
  6. Step 6: Final answer
    x = 105,187.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.